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Regex Tester

Write and test regular expressions against sample text. See matches highlighted in real-time, view capture groups, and use the built-in regex reference.

Regular Expression

Quick patterns:

Test String0 matches

Frequently Asked Questions

What regex flags are supported?

The tester supports all standard JavaScript regex flags: g (global), i (case insensitive), m (multiline), s (dotAll), and u (unicode).

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